Lamborghini Huracan 5.2 V10 Performance gearbox, code RZR

Gearbox Code: RZR

Type: 7-Speed LDF (Lamborghini Doppia Frizione) Dual-Clutch

The RZR code identifies a specific iteration of the 7-speed dual-clutch transmission used in the Lamborghini Huracán. This gearbox is the heart of the Huracán’s drivetrain, engineered to handle the high-revving output of the $5.2\text{L V10}$ engine while providing nearly instantaneous gear changes (shifts occur in less than $50 \text{ milliseconds}$).

Technical Specifications

• Transmission Type: 7-speed LDF Dual-Clutch (DCT).

• Application: Primarily found in the Huracán LP610-4 and LP580-2 (2014–2019 variants).

• Torque Capacity: Optimized for up to $600 \text{ Nm}$ of torque.

• Clutch System: Double-plate wet clutch system ($187 \text{ mm}$ diameter) with independent hydraulic cooling circuits.

• Drivetrain Integration: Includes an integrated electronic differential (for AWD models) or a mechanical limited-slip differential (for RWD models).

Key Features

• Lightning Shifts: The LDF system pre-selects the next gear while the current one is still engaged, ensuring no interruption in power delivery.

   

• ANIMA Integration: The RZR gearbox logic changes significantly depending on the selected drive mode:

   

  • Strada: Smooth, automatic shifting for daily use.

  • Sport: Faster, more aggressive shifts with rev-matching on downshifts.

  • Corsa: Maximum performance shifts with hard engagement, optimized for track telemetry.

     

• Launch Control: Features the “Thrust Mode” software, allowing for $0$–$100 \text{ km/h}$ sprints in as little as $3.2$ seconds.

   

Service & Maintenance Note

The RZR transmission requires specialized high-performance dual-clutch fluid (typically G 052 529 A2). Due to the high thermal loads of the mid-engine layout, the transmission fluid and filter should be inspected regularly, especially if the vehicle is used for track days. Replacing this unit requires a “basic setting” adaptation using the Lamborghini LaRA or Audi ODIS diagnostic system to calibrate the clutch bite points.